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Finding the Fourth Proportional to 14,030.42, 19,363.84 and 8,926.40

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Solution

The fourth proportional to 14,030.42, 19,363.84 and 8,926.40 is: 12,319.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,030.42 : 19,363.84 = 8,926.40 : x
  2. Step 2: Convert to fraction form
    14,030.42/19,363.84 = 8,926.40/x
  3. Step 3: Cross multiply
    14,030.42x = 19,363.84 × 8,926.40
  4. Step 4: Simplify right side
    14,030.42x = 172,849,407.47
  5. Step 5: Solve for x
    x = 172,849,407.47/14,030.42
  6. Step 6: Final answer
    x = 12,319.62

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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.