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Finding the Fourth Proportional to 52,371.90, 78,403.50 and 34,569.72

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Solution

The fourth proportional to 52,371.90, 78,403.50 and 34,569.72 is: 51,752.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,371.90 : 78,403.50 = 34,569.72 : x
  2. Step 2: Convert to fraction form
    52,371.90/78,403.50 = 34,569.72/x
  3. Step 3: Cross multiply
    52,371.90x = 78,403.50 × 34,569.72
  4. Step 4: Simplify right side
    52,371.90x = 2,710,387,042.02
  5. Step 5: Solve for x
    x = 2,710,387,042.02/52,371.90
  6. Step 6: Final answer
    x = 51,752.70

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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.