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Finding the Fourth Proportional to 58,870.40, 88,305.60 and 33,987.20

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Solution

The fourth proportional to 58,870.40, 88,305.60 and 33,987.20 is: 50,980.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,870.40 : 88,305.60 = 33,987.20 : x
  2. Step 2: Convert to fraction form
    58,870.40/88,305.60 = 33,987.20/x
  3. Step 3: Cross multiply
    58,870.40x = 88,305.60 × 33,987.20
  4. Step 4: Simplify right side
    58,870.40x = 3,001,260,088.32
  5. Step 5: Solve for x
    x = 3,001,260,088.32/58,870.40
  6. Step 6: Final answer
    x = 50,980.80

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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.