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Finding the Fourth Proportional to 57,866.34, 86,807.76 and 17,888.76

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Solution

The fourth proportional to 57,866.34, 86,807.76 and 17,888.76 is: 26,835.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,866.34 : 86,807.76 = 17,888.76 : x
  2. Step 2: Convert to fraction form
    57,866.34/86,807.76 = 17,888.76/x
  3. Step 3: Cross multiply
    57,866.34x = 86,807.76 × 17,888.76
  4. Step 4: Simplify right side
    57,866.34x = 1,552,883,184.78
  5. Step 5: Solve for x
    x = 1,552,883,184.78/57,866.34
  6. Step 6: Final answer
    x = 26,835.69

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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.