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Finding the Fourth Proportional to 34,875.74, 48,128.68 and 18,960.14

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Solution

The fourth proportional to 34,875.74, 48,128.68 and 18,960.14 is: 26,165.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,875.74 : 48,128.68 = 18,960.14 : x
  2. Step 2: Convert to fraction form
    34,875.74/48,128.68 = 18,960.14/x
  3. Step 3: Cross multiply
    34,875.74x = 48,128.68 × 18,960.14
  4. Step 4: Simplify right side
    34,875.74x = 912,526,510.82
  5. Step 5: Solve for x
    x = 912,526,510.82/34,875.74
  6. Step 6: Final answer
    x = 26,165.08

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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.