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Finding the Fourth Proportional to 58,809.40, 88,386.90 and 51,206.20

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Solution

The fourth proportional to 58,809.40, 88,386.90 and 51,206.20 is: 76,959.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,809.40 : 88,386.90 = 51,206.20 : x
  2. Step 2: Convert to fraction form
    58,809.40/88,386.90 = 51,206.20/x
  3. Step 3: Cross multiply
    58,809.40x = 88,386.90 × 51,206.20
  4. Step 4: Simplify right side
    58,809.40x = 4,525,957,278.78
  5. Step 5: Solve for x
    x = 4,525,957,278.78/58,809.40
  6. Step 6: Final answer
    x = 76,959.76

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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.