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Finding the Fourth Proportional to 35,341.86, 48,774.88 and 19,429.40

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Solution

The fourth proportional to 35,341.86, 48,774.88 and 19,429.40 is: 26,814.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,341.86 : 48,774.88 = 19,429.40 : x
  2. Step 2: Convert to fraction form
    35,341.86/48,774.88 = 19,429.40/x
  3. Step 3: Cross multiply
    35,341.86x = 48,774.88 × 19,429.40
  4. Step 4: Simplify right side
    35,341.86x = 947,666,653.47
  5. Step 5: Solve for x
    x = 947,666,653.47/35,341.86
  6. Step 6: Final answer
    x = 26,814.28

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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.