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Finding the Fourth Proportional to 10,572.76, 14,557.19 and 8,976.10

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Solution

The fourth proportional to 10,572.76, 14,557.19 and 8,976.10 is: 12,358.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,572.76 : 14,557.19 = 8,976.10 : x
  2. Step 2: Convert to fraction form
    10,572.76/14,557.19 = 8,976.10/x
  3. Step 3: Cross multiply
    10,572.76x = 14,557.19 × 8,976.10
  4. Step 4: Simplify right side
    10,572.76x = 130,666,675.49
  5. Step 5: Solve for x
    x = 130,666,675.49/10,572.76
  6. Step 6: Final answer
    x = 12,358.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.