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Finding the Fourth Proportional to 19,368.60, 29,004.30 and 14,411.40

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Solution

The fourth proportional to 19,368.60, 29,004.30 and 14,411.40 is: 21,580.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,368.60 : 29,004.30 = 14,411.40 : x
  2. Step 2: Convert to fraction form
    19,368.60/29,004.30 = 14,411.40/x
  3. Step 3: Cross multiply
    19,368.60x = 29,004.30 × 14,411.40
  4. Step 4: Simplify right side
    19,368.60x = 417,992,569.02
  5. Step 5: Solve for x
    x = 417,992,569.02/19,368.60
  6. Step 6: Final answer
    x = 21,580.94

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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.