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Finding the Fourth Proportional to 86,977,018.80, 130,465,009.80 and 22,280,698.80

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Solution

The fourth proportional to 86,977,018.80, 130,465,009.80 and 22,280,698.80 is: 33,420,915.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,977,018.80 : 130,465,009.80 = 22,280,698.80 : x
  2. Step 2: Convert to fraction form
    86,977,018.80/130,465,009.80 = 22,280,698.80/x
  3. Step 3: Cross multiply
    86,977,018.80x = 130,465,009.80 × 22,280,698.80
  4. Step 4: Simplify right side
    86,977,018.80x = 2,906,851,587,292,848.50
  5. Step 5: Solve for x
    x = 2,906,851,587,292,848.50/86,977,018.80
  6. Step 6: Final answer
    x = 33,420,915.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.